The NiteOwl CPAP battery provides power to your CPAP device no matter where you need it! The NiteOwl provides a variable voltage design with smart cables with dynamic control output to deliver the correct current to your specific CPAP which allows this battery to work for the majority of CPAP devices on the market. This battery is made up of high-quality lithium-ion cells and is compact, making it ultra-portable. This can be used as a permanent uninterrupted battery backup power supply in power outages, while camping, in the RV or car, and is also FAA approved for air travel usage. The battery has a USB 3.0 quick charge port for charging cell phones, tablets, and more! The NiteOwl will provide 1-3 nights of power to your CPAP device with the heated humidification settings turned off. Compatible with ResMed Air 10, Air 11, and AirMini devices.